Enables N-acetyl-L-aspartate-L-glutamate ligase activity and citrate-L-glutamate ligase activity. Predicted to be involved in cellular protein modification process. Located in cytoplasm. Is expressed in several structures, including central nervous system; eye; genitourinary system; hindlimb phalanx; and tooth. Orthologous to human RIMKLB (ribosomal modification protein rimK like family member B). [provided by Alliance of Genome Resources, Apr 2022]